1. What is the default OSPF network for the following media types: Ethernet, Token Ring, and FDDI? Highlight for answer: Broadcast 2. What OSPF router type connects one or more areas to…
Subneting and Summarization
Subneting The process of extending the default subnet mask creates a counting range in the octet that the subnet was extended into, which can be used to represent subnetworks. This allows a…
IP Address Classes and CIDR
IP addresses are divided in to ‘classes’, based on the decimal value represented in the first octet. This class definition is referred to as the First Octet Rule. There are five classes…
IP Addressing
An IP address is a network layer (Layer 3) address that uniquely identifies a host, including network components and devices, on a TCP/IP network. An IP address is composed of 32 binary…
CCNA(640-802) Lab – EIGRP Troubleshooting
After adding P4S2 router, no routing updates are being exchanged between P4S1 and the new location. All other inter connectivity and Internet access for the existing locations of the company are working…
Top 10 technical certifications for 2009
1. Cisco CCIE: As one of the most difficult certifications to obtain, the CCIE is an excellent credential for a professional. The thriving networking field demands high skilled professionals and the CCIE…
CCNP 642-825-Update(Apr-2009) New Questions
1. Refer to the exhibit. Routers RTB and -RTC have established LDP neighbor sessions. During troubleshooting, you discovered that labels are being distributed between the two routers but no label swapping information…
Enhanced Interior Gateway Routing Protocol
Enhanced Interior Gateway Routing Protocol – (EIGRP) is a Cisco proprietary routing protocol loosely based on their original IGRP. EIGRP is an advanced distance-vector routing protocol, with optimizations to minimize both the…
Configuring and Verifying the OSPF
There are a few simple commands that are used to configure and troubleshoot a Cisco router configured to use OSPF in a single area and in a multiple area network. The commands…